https://phys.org/ en-us Phys.org internet news portal provides the latest news on science including: Physics, Nanotechnology, Life Sciences, Space Science, Earth Science, Environment, Health and Medicine. First-of-its-kind research on cryptocurrency finds that the most regulated coins create the most efficient markets. https://phys.org/news/2024-02-crypto-efficient.html Economics & Business Thu, 01 Feb 2024 15:55:15 EST news626025310 Vikings, traditionally depicted as primitive bearded warriors, had a fondness for some of life's precious things. In Europe, hundreds of buried hoards of silver testify to its attraction for Vikings when they lived more than 1,000 years ago. https://phys.org/news/2023-11-silver-reveals-luxury-vikings-talents.html Archaeology Tue, 07 Nov 2023 12:17:04 EST news618581821 Want to get a slight edge during a coin toss? Check out which side is facing upwards before the coin is flipped –- then call that same side. https://phys.org/news/2023-10-coin-tosses-slight-bias.html Mathematics Sun, 22 Oct 2023 13:10:01 EDT news617025849 Did you know the change rattling in your pocket is similar to coins used in ancient Greece? https://phys.org/news/2023-10-museum-ancient-greek-coins.html Archaeology Thu, 19 Oct 2023 16:58:34 EDT news616953511 New research from the University of Liverpool's Department of Archaeology, Classics and Egyptology, together with the Department of Classics and Ancient History, University of Warwick, has used gold impurities in silver coins and lead pollution in Greenland ice to show that the Romans were early pioneers of recycling. https://phys.org/news/2023-10-romans-early-recycling.html Archaeology Mon, 16 Oct 2023 14:02:09 EDT news616683727 A large team of researchers affiliated with multiple institutions across Europe, has found evidence backing up work by Persi Diaconis in 2007 in which he suggested tossed coins are more likely to land on the same side they started on, rather than on the reverse. The team conducted experiments designed to test the randomness of coin flipping and posted their results on the arXiv preprint server. https://phys.org/news/2023-10-flipped-coins-fair-thought.html Mathematics Wed, 11 Oct 2023 12:10:01 EDT news616244808 There are ancient pirates and modern treasure hunters. They are separated by more than 200 years of history, differences in the available technology, and types of sponsorship that keep them afloat—the former sailing for a country and the latter protected by a company. Even so, they seem to have the same objective: the gold and silver of the Spanish Empire. https://phys.org/news/2023-09-treasure-hunters-pose-problem-underwater.html Archaeology Thu, 28 Sep 2023 12:41:04 EDT news615123661 In 2022, the Royal Australian Mint issued a $2 coin decorated with honeybees. Around 2,400 years earlier, a mint in the kingdom of Macedon had the same idea, creating a silver obol coin with a bee stamped on one side. https://phys.org/news/2023-07-bees-coins-millennia-hinting-age-old.html Archaeology Economics & Business Tue, 25 Jul 2023 11:31:18 EDT news609503475 After 20 years of above-ground surveys, archaeologists have excavated the famous Iron Age site of Němčice and confirmed the presence of the earliest glass workshop north of the Alps. https://phys.org/news/2023-07-earliest-glass-workshop-north-alps.html Archaeology Fri, 21 Jul 2023 11:41:00 EDT news609158456 A trove of more than 700 gold coins dating back to the US Civil War found buried in a cornfield in the state of Kentucky is being put up for sale and is expected to reap millions. https://phys.org/news/2023-07-stunning-cache-gold-coins-kentucky.html Archaeology Fri, 14 Jul 2023 14:10:02 EDT news608562358 The price and trading volume of lower value crypto coins and tokens are being impacted by "crypto influencers" on YouTube, but only in the very short-term, according to a study involving the Center for Finance, Technology and Society at Nottingham Business School (NBS), part of Nottingham Trent University. The paper is published in the journal Finance Research Letters. https://phys.org/news/2023-03-youtube-crypto-shown-short-term-impact.html Economics & Business Thu, 30 Mar 2023 10:37:37 EDT news599391455 EPFL mathematicians, in collaboration with Purdue University, have settled a 30-year-old question about spheres and 4-dimensional spaces. The results bring new light to the "Euler class," one of the most powerful tools to understand complicated spaces. https://phys.org/news/2023-02-mathematicians-spheres-4d-spaces-scope.html Mathematics Tue, 14 Feb 2023 09:07:52 EST news595588067 Anglo-Saxon monasteries were more resilient to Viking attacks than previously thought, archaeologists have concluded. https://phys.org/news/2023-01-viking-brutality-monastery.html Archaeology Mon, 30 Jan 2023 13:36:36 EST news594308191 One tarnished silver coin at a time, the ground is yielding new evidence that in the late 1600s, one of the world's most ruthless pirates wandered the American colonies with impunity. https://phys.org/news/2022-12-1600s-pirate-hid-colonies-impunity.html Archaeology Thu, 08 Dec 2022 04:03:38 EST news589694607 A new analysis of several Roman coins unearthed in 1713—long thought to be forgeries—suggests that they are authentic, providing evidence that the leader portrayed on one of the coins was indeed in power during the 260s CE. Paul Pearson of University College London, U.K., and colleagues present these findings in PLOS ONE. https://phys.org/news/2022-11-ancient-roman-coins-thought-fakes.html Archaeology Wed, 23 Nov 2022 14:00:10 EST news588423435 Israel's Antiquities Authority said Monday it has discovered a rare 1,850-year-old bronze zodiac coin during an underwater survey off the coastal city of Haifa. https://phys.org/news/2022-07-coin-zodiac-israel-coast.html Archaeology Tue, 26 Jul 2022 13:16:07 EDT news578060163 SN 1054 was one of the most spectacular astronomical events of all time. The supernova explosion eventually formed what is today known as the M1—the Crab Nebula. But in 1054 AD, the year it occurred, it was an ultrabright star in the sky and one of only eight recorded supernovae in the history of the Milky Way. However, it was only noted by half of the literate world. Primarily written about in the East, especially in China, SN 1054 was almost wholly absent from the Western record—except, potentially, for a subtle hint at it in the most unlikely of place: some Byzantine coins. https://phys.org/news/2022-06-ancient-coins-supernova.html Astronomy Fri, 24 Jun 2022 10:33:02 EDT news575285581 While cash is issued in the form of physical paper and coins, central bank digital currency (CBDC) involves recording transaction information in a digital ledger kept by the central bank. A study published in Economic Inquiry examines how introducing CBDC affects welfare in an economy in which tax evasion occurs in cash transactions. https://phys.org/news/2022-05-central-bank-digital-currency-social.html Economics & Business Wed, 18 May 2022 03:59:52 EDT news572065190 With punters preparing to mark Anzac Day with a game of two-up, a mathematician from The Australian National University (ANU) has revealed some of the game's statistical secrets.  https://phys.org/news/2022-04-tails-mathematician-odds.html Mathematics Fri, 22 Apr 2022 09:50:16 EDT news569839815 A treasure trove of some 200 Roman-era coins was discovered in northwestern Spain thanks to the apparent efforts of a hungry badger hunting for food, archaeologists have said. https://phys.org/news/2022-01-burrowing-badger-unearths-roman-era-treasure.html Archaeology Mon, 10 Jan 2022 16:00:01 EST news561052434 The Israel Antiquities Authority announced Wednesday the discovery of remnants of two shipwrecks off the Mediterranean coast, replete with a sunken trove of hundreds Roman and medieval silver coins. https://phys.org/news/2021-12-israeli-archaeologists-treasures-ancient-shipwrecks.html Archaeology Wed, 22 Dec 2021 10:35:04 EST news559391698 Amid the devastation after World War I, Verica Ivanovic's grandfather used whatever construction materials he could find to build the family's home including, unbeknown to him, bricks from the Roman Empire. https://phys.org/news/2021-12-held-history-roman-blocks-serbian.html Archaeology Wed, 15 Dec 2021 04:36:06 EST news558765363 Game theory expert Haris Aziz says cricket should introduce a new way of conducting the toss so there's less of an advantage gained just from calling heads or tails correctly. https://phys.org/news/2021-12-academic-radical-cricket-toss-decisive.html Other Wed, 01 Dec 2021 08:54:55 EST news557571290 A study of gold coins from different moments of the Roman Empire has revealed the thriving economy at the time of minting. https://phys.org/news/2021-11-muonic-x-ray-emission-spectroscopy-roman.html General Physics Thu, 18 Nov 2021 09:01:35 EST news556448492 Assistant Professor Kang Hao Cheong and his research team from the Singapore University of Technology and Design (SUTD) have set out to apply concepts from quantum Parrondo's paradox in search of a working protocol for semiclassical encryption. In a recent Physical Review Research letter, the team published the paper "Chaotic switching for quantum coin Parrondo's games with application to encryption' and discovered that chaotic switching for quantum coin Parrondo's games has similar underlying ideas and working dynamics to encryption. https://phys.org/news/2021-10-quantum-parrondo-random-encryption.html Quantum Physics Fri, 15 Oct 2021 10:11:34 EDT news553511479 A team of researchers from Zhengzhou University, the Modern Analysis and Computer Center of Zhengzhou University and Peking University, all in China, has found evidence of what appears to be the oldest coin-minting operation ever uncovered. In their paper published on the Cambridge University site Antiquity, the group describes their discovery and study of coins and minting molds found at a dig site in Henan Province, China, and what they have learned about it. https://phys.org/news/2021-08-china-oldest-coin-making-facility.html Archaeology Fri, 06 Aug 2021 08:07:12 EDT news547456025 In the knockout phase of the European Championship, some matches will probably be decided in a penalty shoot-out. There has been much discussion about whether the sequence in which the teams take their penalties has an influence on the outcome of the match. A new study has now tried answering this question. As Matthias Sutter from the Max Planck Institute for the Study of Collective Goods in Bonn together with three colleagues from Düsseldorf found out, it is not the sequence, but the result of the coin toss before the penalty shootout, that matters. https://phys.org/news/2021-06-coin-toss-outcome-penalty-shootouts.html Social Sciences Wed, 30 Jun 2021 10:24:40 EDT news544267464 Several years ago, two amateur archaeologists from Brabant discovered over a hundred Roman coins near to Berlicum in the north of the province. After years of research, it now appears that the location, close to a ford in the river, was a site for offerings. Another interesting fact is that the coins offered were chosen very precisely. "This was an important eureka moment in my academic career." https://phys.org/news/2021-06-hoard-roman-coins-safe.html Archaeology Wed, 30 Jun 2021 10:23:40 EDT news544267418 A tiny Swiss gold coin bearing a picture of Albert Einstein sticking his tongue out has been crowned as the world's smallest commemorative coin, Switzerland's mint announced Tuesday. https://phys.org/news/2021-04-swiss-gold-world-smallest-commemorative.html Other Tue, 13 Apr 2021 08:26:00 EDT news537521157 A handful of coins unearthed from a pick-your-own-fruit orchard in rural Rhode Island and other random corners of New England may help solve one of the planet's oldest cold cases. https://phys.org/news/2021-04-ancient-coins-mystery-1600s-pirate.html Archaeology Thu, 01 Apr 2021 03:54:51 EDT news536468086